Yamaha PSR-320 - Manual (Page 7)

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Power Supply
Your PSR-320/420 will run either from batteries or an optional power adap-
tor. Follow the instructions below according to the power source you intend to
use.
• Never interrupt the power
supply (e.g. remove the batter-
ies or unplug the AC adaptor)
during any PSR-320/420 record
operation! Doing so can result
in a loss of data.
■ Using Batteries
...............................................................................................................................................
For battery operation the PSR-320/420 requires six 1.5V SUM-1, “D”
size, R-20 or equivalent batteries.
When the batteries need to be replaced “Btry Low” will appear on the
display. Also the volume may be reduced, the sound may be distorted, and
other problems may occur. When this happens, turn the power off and either
replace the batteries or connect an AC adaptor.
Replace the batteries as follows:
Z
Open the battery compartment cover located on the instrument’s bottom
panel.
X
Insert the six new batteries, being careful to follow the polarity markings
on the inside of the compartment.
C
Replace the compartment cover, making sure that it locks firmly in place.
• When the batteries run down,
replace them with a complete
set of six new batteries.
NEVER mix old and new batter-
ies.
• Do not use different kinds of
batteries (e.g. alkaline and
manganese) at the same time.
• To prevent possible damage
due to battery leakage, remove
the batteries from the instru-
ment if it is not to be used for
an extended period of time.
Setting Up
This section contains information about setting up your PSR-320/
420 and preparing to play. Be sure to go through this section
carefully before using your PSR-320/420.
• Use ONLY a Yamaha PA-5, PA-
5B, or PA-5C AC Power Adap-
tor to power your instrument
from the AC mains. The use of
other adaptors may result in
irreparable damage to both the
adaptor and the PSR-320/420.
■ Using An Optional AC Power Adaptor
.............................................................
Plug the DC output cable from an optional Yamaha PA-5, PA-5B, or PA-
5C AC Power Adaptor into the DC IN jack on the rear panel of the PSR-
320/420, then plug the Power Adaptor (or the AC cable of the Power Adap-
tor) into a convenient wall AC power socket. The internal batteries are auto-
matically disconnected when an AC Power Adaptor is used.
DC IN 10-12V
PA-5,
PA-5B,
or
PA-5C
AC power socket